Profitability was very high, with mining costs at the point of extraction only 75 cents, while the selling price ranged from $15 to $18.
Entering the twentieth century, use of anthracite was clearly on the rise, when production reached 57.3 million tons and grew to more than 100 million tons by World War I.
in late 1800s and early 1900s the industrial revolution took place
Both had policies of empire-building in the Pacific in the early 1900s.
Both had policies of empire-building in the Pacific in the early 1900s.
Both had policies of empire-building in the Pacific in the early 1900s.
Most anthracite was used as space heating fuel for industrial, commercial, and residential purposes. In addition, a small portion of anthracite was used for electrical power generation and by the steel industry
Germany and Great Britain were involved in a naval rivalry in the early 1900s.
buffaloes were killed near extinction in the early 1900s
Railroad tracks that were built in the early 1900s were constructed from steel. The steel was used to replace rail tracks and railway cars that were built from iron prior to the early 1900s.
in the early 1900s
In the early 1900s
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